chase



(No Model.)

J. K. CHASE.

BOX STRAP.

No. 367,892. Patented Au 9, 1887.

ATZOR/VEY verte'd plan View thereof.

cross-section thereof, on the line :0 m, Fig. 1,

I UNITED STATES PATENT OFFICE.

JOHN K. CHASE, OF NEW YORK, N. Y., ASSIGNOR TO THE CHASE METAL COMPANY,OF SAME PLACE. I

BOX-STRAP.

SPECIFICATION formin gspart of Letters Patent No. 367,892, dated August9, 1887.

i Application filed December 9, 1886. Serial No. 221,156. (No model.)

To all whom) it may concern.-

Be it known that I, J OHN K. CHASE, a citizen of theUnited States,andaresident of New York, in the county'of New York and State of New York,have invented certain new and useful Improvements in Box-Straps, ofwhich the following is a specification.

My invention relates to sheet-n1etal straps for packing boxes or cases;p and it consists in a certain novel construction of such straps frompieces of waste metal,as hereinafter fully described, thereby producingan article of superior utility at a very low cost.

In the accompanying drawings, Figure 1 represents a plan view of abox-strap embodying my invention. Fig. 2 represents an in Fig. 3represents a and on a larger scale than in said figures.

Similar letters indicate similar parts.

The letter A indicates the pieces or sections of sheet metal composingthe strap. These sections A may be of equal or unequal length, accordingto the state of the metal employed, and they are countersunk by means ofa suitable punch at points adjacent to the ends thereof, where onesection overlaps the other, forminginterlocking sockets or protuberancesB in the double thickness of metal produced by said overlapping ends, asshown in Fig. 3.

-One or more sockets, B may be used to each joint between the sectionsA, as circumstances may render expedient, and the sockets may be eitherround or of anyother shape.

I Each of the sections A is bent-or folded over upon itself alongthelongitudinal edges thereof, as at O, and the folded edges of onesection are fitted into those of the other at or opposite to saidoverlapping ends of the sections, forming double-folded edges, D, atthose points. Into the bight of both folded edges 0 of the sections isinserted a strand, 0, of wire, which is continuous and extends the wholelength of the strap, the same being put in place in the operation ofproducing said folded edges, for which last-named purpose asuitablemachine may be employed. If desirable, the wire strands 6 may befastened at the ends,although they are generally held againstdisplacement countersunk to form interlocking sockets, and

by the tendency of the folded edges C-of the sections to bind thestrands.

The sockets B assist in uniting the sections A to each other, and alsoact as guides or receptacles for the nails that may be used for securingthe strap to the desired box, thus per mitting the nails to be readilydriven through the overlapping ends or portions of. the sec tions, whicheffectually prevent the sections from drawing apart when in use.

The folded edges 0 of the sections not only render the strap extremelyrigid, but also act as a joint or fastening by being fitted into eachother at the point of overlapping of the sections, while the wirestrands e tend to resist the endwise strain on the strap, a; well as toincrease its rigidity.

In order to insure a secure fastening of the strap to the box, thefolded edges 0 of the sections may be arranged to extend inward to apoint near the center line of the strap, as shown, so that said edgesare brought under the heads of the nails, and to increase the effect ofthe doublefolded edge D the inner edge may be cut out, as at 0, forminga notch to receive the extremity of the outer edge at that point, saidextremity of the outer edge being bent over into the notch,as moreclearly shown in Fig. 3.

It willbe seen that by my invention 1 am enabled to utilize wastemetalas, for example, that obtained from refuse fruit-cans--'and suchmaterial being extremely cheap the cost of the strap is reduced to aminimum, while it possesses the requisite features of a boxstrap in asuperior degree. 7

\Vhat I claim as new, and desire to secure by Letters Patent, is-

1. A sheet-metal box-strap constructed in sections the ends of whichoverlap and are the longitudinal edges of which are folded uponthemselves at the point of overlapping, substantially as and for thepurpose described.

2. A sheet metal box-strap constructed in sections the ends of whichoverlap and are 5 countersunk, and the longitudinal edges of which arefolded upon themselves throughout the length thereof,with the edges ofone section fittedinto thoseoftheotheratsaid pointofover- Signed at NewYork, in the county of New lapping, substantially as and for the purposeYork and State of New Y ork, this 7th day of described. December A. D.1886.

3. A sheet-metal box-strap constructed in 5 sections the ends of whichoverlap and the JOHN K. CHASE.

longitudinal edges of which are folded upon themselves, in combinationwith re-enforcing \Vitnesses:

strands of wire arranged in the bights of said J. L. llUnnARD,

folded edges, substantially as and for the pur- IO pose described. 7

. Oius. WMILnns.

